High severity · published Oct 6, 2021
CVE-2021-20264
An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11 containers
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11 containers. This flaw allows an attacker with access to the container to modify the /etc/passwd and escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openjdk · Oracle
1.8.0; 11 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20264
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-20264
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1932283
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